Introduced in 1994 the Smith & Wesson Sigma is a simplistic, no frills, combat oriented handgun. The Sigma also marks the first time synthetic materials were used in a Smith & Wesson pistol. The SW40 was the first Sigma model produced and chambered the .40 cal. S&W cartridge.

This highly detailed KWC replica of the Sigma is fully licensed by Smith & Wesson and features authentic markings and sequential serial numbers. It has amazing attention to detail right down to the S&W logo on the grips and the white dot combat sights. It is mainly constructed out of ABS although the barrel, slide lock, take down lever, slide guide rod and magazine are metal. The pistol is incredibly well balanced while the streamline and ergonomic design fits great in your hand.

With its highly efficient gas system and lightweight slide the Sigma achieves a fast cycle rate which produces a nice snappy recoil. Cool down affect is also very limited on this model making it capable of reliable rapid fire. Its large magazine holds an abundance of gas and has an impressive 25 round capacity.

If you are seeking a powerful and inexpensive blow back sidearm, look no further than the S&W Sigma.

... it was amazing when i first got it. i loved it. but after about a week of use the entire thing fell apart. first the spring jammed, then the slide. when i first got it, the slide would not come off even with the slide release levers on the sides. be careful and very kind to this gun when you get it.

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This is the best gas gun that i have used for a few years. I have had a lot of gas guns in that time. This has great fps for its size, it looks cool, and it is just the right weight. I even named it Pwnzor. I loved it from the minute i opened the box. BUY IT!!!!!!!
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... it was amazing when i first got it. i loved it. but after about a week of use the entire thing fell apart. first the spring jammed, then the slide. when i first got it, the slide would not come off even with the slide release levers on the sides. be careful and very kind to this gun when you get it.

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I actually own the Smith and Wesson (kwc) Model Sw40f with the larger magazine (59 ct.) but it's bassically the same thing. This gun is amazing. It can make anybody duck it's so loud. The accuracy is amazing - with .12 (i wouldn't recommend) a target 40 feet away can be hit, .2 and .25 can hit 70 . The blow back drains a little more gas but is like 50 times more reliable than a $30 Pos gas gun. With gas guns you go through ammo like no other so i would recommend a larger clip.

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Great blowback action and a nice weight. Shoots as far and as fast as you'd want a sidearm to shoot. The front of the plastic slide broke off while i was firing in a match, though. My advice would be to shell out $20 more and get a metal slide or save $20 and get a NBB.

I had this gun until it broke from using it too much. It shoots really really good. I would go Rambo and take this after two or three guy's at a time and of course get all of them. So all and all, it's a good gun untill it breaks then you're thinking WTF?!?!?! Why is this happening to me :( :( it was a sad day when i got rid of what was left when it broke so it's not worth 90 bucks maybe 50. That's the only reason why i don't have another one yet. But if you take really good care of your guns and don't bang 'em around, this is the sidearm for you.

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It was a lot of fun at first, but as with some of the other reviewers, the thing couldn't take more than a couple months of regular use. Plastic slide bit the dust. The first half inch of the gun cracked and broke off. My guess is the blow back action on the spring guide is just too much for the ABS. Also the "adjustable" hop-up is pointless. You can turn that set screw for hours and never change the trajectory of your shots. Extra mags are kinda hard to find. So in my opinion either upgrade to the model with a metal slide, or go for something a bit nicer with a real working hop up, like a KWA or WE.

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First i want to say i did not get this gun from Shortyusa.com (sorry!). Well out of the box this gun was amazing! But after maybe 4 months it started to lose its amazingness (my word). First, the slide couldn't load a bb into the chamber, unless force was really applied. Then the mag started leaking. It's a good gun, but if it had better internals and a better mag, it would be dressed to impress. Just be warned. I will say this though, save up a little bit more money and get a higher quality GBB or get a nice, low maintenance NBB for a little bit less. Just don't be surprised if this gun starts to fall apart on you.

PROS:
good FPS
Ok range
metal mag
medium quality plastics

CONS:
low durability
leakage
doesn't last very long

PLEASE! Save your money and get a better GBB

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